Before installing the update, you need to delete the I2 folder as some files changed location.
Remember moving the I2\Localization\Resources folder outside of the I2 folder to keep the localization data or export the localization as CSV or to google and after installing, import the data back.

When I hit verify, I still get the "version number is not correct."

Yep, the WebService version number is not "2", please verify that its the version you have and that the new WebService is deployed.

Thanks,
Frank

Are you Give I2L
5 stars!
Are you Please lets us know how to improve it!

Okay, I've pinned down what I was doing wrong. I forgot to set the WebApp to be accessible to everyone, even anonymous.

It might be helpful if the error message was clearer that that was the issue. Poking around inside, I saw the LocalizationEditor wasn't even getting a version number from the WebApp, which is something that might be a way of detecting the Unity tools can't access the WebApp.

Now the app is able to verify my WebSerivce, but now the refresh for the Google Drive list isn't finding any of my spreadsheets.